GLSL: Add test for initializing tess level output.
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#version 450
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layout(vertices = 4) out;
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const float _5_init[2] = float[](0.0, 0.0);
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const float _6_init[4] = float[](0.0, 0.0, 0.0, 0.0);
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void main()
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{
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if (gl_InvocationID == 0)
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{
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gl_TessLevelInner = _5_init;
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}
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if (gl_InvocationID == 0)
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{
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gl_TessLevelOuter = _6_init;
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}
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gl_out[gl_InvocationID].gl_Position = vec4(1.0);
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gl_TessLevelInner[0] = 1.0;
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gl_TessLevelInner[1] = 2.0;
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gl_TessLevelOuter[0] = 3.0;
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gl_TessLevelOuter[1] = 4.0;
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gl_TessLevelOuter[2] = 5.0;
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gl_TessLevelOuter[3] = 6.0;
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}
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shaders-no-opt/asm/tesc/tess-level-initializer.asm.tesc
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87
shaders-no-opt/asm/tesc/tess-level-initializer.asm.tesc
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; SPIR-V
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; Version: 1.0
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; Generator: Khronos Glslang Reference Front End; 10
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; Bound: 47
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; Schema: 0
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OpCapability Tessellation
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint TessellationControl %main "main" %gl_out %gl_InvocationID %gl_TessLevelInner %gl_TessLevelOuter
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OpExecutionMode %main OutputVertices 4
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OpSource GLSL 450
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OpName %main "main"
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OpName %gl_PerVertex "gl_PerVertex"
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OpMemberName %gl_PerVertex 0 "gl_Position"
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OpMemberName %gl_PerVertex 1 "gl_PointSize"
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OpMemberName %gl_PerVertex 2 "gl_ClipDistance"
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OpMemberName %gl_PerVertex 3 "gl_CullDistance"
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OpName %gl_out "gl_out"
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OpName %gl_InvocationID "gl_InvocationID"
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OpName %gl_TessLevelInner "gl_TessLevelInner"
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OpName %gl_TessLevelOuter "gl_TessLevelOuter"
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OpMemberDecorate %gl_PerVertex 0 BuiltIn Position
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OpMemberDecorate %gl_PerVertex 1 BuiltIn PointSize
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OpMemberDecorate %gl_PerVertex 2 BuiltIn ClipDistance
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OpMemberDecorate %gl_PerVertex 3 BuiltIn CullDistance
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OpDecorate %gl_PerVertex Block
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OpDecorate %gl_InvocationID BuiltIn InvocationId
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OpDecorate %gl_TessLevelInner Patch
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OpDecorate %gl_TessLevelInner BuiltIn TessLevelInner
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OpDecorate %gl_TessLevelOuter Patch
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OpDecorate %gl_TessLevelOuter BuiltIn TessLevelOuter
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%void = OpTypeVoid
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%3 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%uint = OpTypeInt 32 0
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%uint_1 = OpConstant %uint 1
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%_arr_float_uint_1 = OpTypeArray %float %uint_1
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%gl_PerVertex = OpTypeStruct %v4float %float %_arr_float_uint_1 %_arr_float_uint_1
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%uint_4 = OpConstant %uint 4
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%_arr_gl_PerVertex_uint_4 = OpTypeArray %gl_PerVertex %uint_4
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%_ptr_Output__arr_gl_PerVertex_uint_4 = OpTypePointer Output %_arr_gl_PerVertex_uint_4
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%gl_out = OpVariable %_ptr_Output__arr_gl_PerVertex_uint_4 Output
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%int = OpTypeInt 32 1
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%_ptr_Input_int = OpTypePointer Input %int
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%gl_InvocationID = OpVariable %_ptr_Input_int Input
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%int_0 = OpConstant %int 0
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%float_1 = OpConstant %float 1
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%22 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%uint_2 = OpConstant %uint 2
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%_arr_float_uint_2 = OpTypeArray %float %uint_2
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%_ptr_Output__arr_float_uint_2 = OpTypePointer Output %_arr_float_uint_2
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%inner_zero = OpConstantNull %_arr_float_uint_2
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%gl_TessLevelInner = OpVariable %_ptr_Output__arr_float_uint_2 Output %inner_zero
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%_ptr_Output_float = OpTypePointer Output %float
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%int_1 = OpConstant %int 1
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%float_2 = OpConstant %float 2
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%_arr_float_uint_4 = OpTypeArray %float %uint_4
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%_ptr_Output__arr_float_uint_4 = OpTypePointer Output %_arr_float_uint_4
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%outer_zero = OpConstantNull %_arr_float_uint_4
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%gl_TessLevelOuter = OpVariable %_ptr_Output__arr_float_uint_4 Output %outer_zero
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%float_3 = OpConstant %float 3
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%float_4 = OpConstant %float 4
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%int_2 = OpConstant %int 2
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%float_5 = OpConstant %float 5
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%int_3 = OpConstant %int 3
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%float_6 = OpConstant %float 6
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%main = OpFunction %void None %3
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%5 = OpLabel
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%19 = OpLoad %int %gl_InvocationID
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%24 = OpAccessChain %_ptr_Output_v4float %gl_out %19 %int_0
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OpStore %24 %22
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%30 = OpAccessChain %_ptr_Output_float %gl_TessLevelInner %int_0
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OpStore %30 %float_1
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%33 = OpAccessChain %_ptr_Output_float %gl_TessLevelInner %int_1
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OpStore %33 %float_2
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%38 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_0
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OpStore %38 %float_3
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%40 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_1
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OpStore %40 %float_4
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%43 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_2
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OpStore %43 %float_5
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%46 = OpAccessChain %_ptr_Output_float %gl_TessLevelOuter %int_3
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OpStore %46 %float_6
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OpReturn
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OpFunctionEnd
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